Home / 513,216,200.40-769,824,300.60-461,260,078.80

Finding the Fourth Proportional to 513,216,200.40, 769,824,300.60 and 461,260,078.80

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Solution

The fourth proportional to 513,216,200.40, 769,824,300.60 and 461,260,078.80 is: 691,890,118.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,216,200.40 : 769,824,300.60 = 461,260,078.80 : x
  2. Step 2: Convert to fraction form
    513,216,200.40/769,824,300.60 = 461,260,078.80/x
  3. Step 3: Cross multiply
    513,216,200.40x = 769,824,300.60 × 461,260,078.80
  4. Step 4: Simplify right side
    513,216,200.40x = 355,089,217,556,910,912
  5. Step 5: Solve for x
    x = 355,089,217,556,910,912/513,216,200.40
  6. Step 6: Final answer
    x = 691,890,118.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.